Form for concrete construction



Feb. 10, 1931. E. H. YARWOOD FORM FOR CONCRETE CONSTRUCTION Filed Feb. 16, 1924 gmn'ntoz, 000063.

flnmzuol FEW Patentecll eb.l10,193 1 I 91 881;

10 surface is not such that the plaster. will readings fol-min ect of my invention is to provide a device as UNITED STATES EMANUEL irBBERT- YARWOOID, or nEwARmnEwannsnY '7 roRMron CONCRETE cons rnucrroni Application filed ebruary 16,1924. Serial m.ees,237.

My invention relates to concrete constructo the concrete and-spaced fr'omthe 'steel tion and particularly to improvements in the structural elements .and providing means for 1 forms used in concrete construction. :keying-ithe plaster thereto. invention.

The usual'practice in concrete construction further consists in'various details of construc 5 is to provide wooden or other forms which tion and arrangements of parts all asi'willbe 5e are held in place until the concrete sets, and fully described'hereinafter and particularly are then removed. It requires considerable pointed out inthe claims. labor to put up. and take down these remov- My inventionwill bemore readily underable forms, and furthermore, the concrete stood by reference to'the accompanying drawj g a part'of this specification andily and firmly adherethereto. in whichj The object of my invention is to provide 1 Fig.1 is a detail sectional view illustrating a form for the concrete which will become a the form plates-in position, 1 I part of the complete structure, thereby sav- 'Fig. 2is asimilar fragmentary'detail illus v r 15 ing the necessity of putting up and taking tratingtheiconcreteandplaster in place, the 65,

down the usual forms. Afurthe'r object of section being taken on substantially the-line my'invention is to provide a device as men 22'0,f Fig.3, tioned'which will furnish a proper surface for Big. 3 is a" transverse section on the liner securing the plaster thereto. A further ob- 3-3 of-Figi luponanenlar'geclscale,

f Fig. 41s a plan viewof theinterlocked ends,Z0. mentioned'which' will constitute a reinforc ofadja'cent plates,- and K ing element for the concrete slabs and beams, Fig. 5' is a detailsectional view ofa; slight A further object of my invention is to promodification. a 7 vide a device as mentioned which may be'fur- Referring now to the drawing 1 1 indi-f 25 nished in standard sizes and used to construct cates I-beams of a steel structure,-such as the the forms without any waste of material usual fioorbeams, and 2472 indicates the form whatever, irrespective of the distance between plates embodying. the novel features f-of my beams and the dimensions of the same. .A invention; These form'plates areprovided further object of my invention is to provide with parallel dovetailed corrugations-3 v and w a device as mentioned of such construction 4, the former opening downwardly-and-the so that the adjacent ends of the same will selatter upwardly for a-purpose hereinafter] curely interlock. .Other objects will appear described; 'The corrugations at one, end of hereinafter. each'plate are slightly enlarged as. at f5 to With these objects in view my. invention snugly receive the ends ofthe adj acent-plate .35 consists generally in providing sheet metal as shown clearly in Figs'ilfand l. By this 5.

corrugated'members which are adapted to be arrangement, it is obvious that theform may placed in position to constitute the forms for be provided in standard sizes and'm 'ay be the concrete, the corrugations forming both placed into position without waste due to cuta look into the concrete and a key for the ting, as with the interlocking ends these. so covering coats of plaster. These corrugated joints may occur at any. place in the consheets are provided With interlocking ends so struction. The edges of the plates are prothat the joints between the same may occur vided with corrugationsiwhichinterlock as i at any place in the structure without being illustrated in Figs. 3 and 4, and if desired a objectionable; and by transversely cutting 'na-il or pin 6 may be driven thru'the adja- .5 the upper portion of the corrugations they cent ends as illustrated. Theseedgecorrumay beshaped about the steel beams without gations may be of the dovetail type as shown .difliculty and without opening the bottom of in Fig. 3 or may be vertical channels as illusthe form plates at the joints. My invention trated in Fig. 5. r 1 p further consists in a concrete construction To shape the form about the beams 1 a 50 comprisingacorrugated form member locked vertical cut 7 is made for the upper angles 10c cut,- and the bottomfaces are readily bent,

sitionwith interlocking ends an without Waste of material, irrespective of the r and a V-shaped cut 8 is lmade for the lower I angles. In making the cut 7 and 8 only those portions above the bottom of the plate-are and keep joints closed at the bends.

It is obvious that Withmy inventionas above described, .-.the expense of' removable forms and the labor incident to vremovingthe same is obviated. Also the entire surface of the concrete is corrugated so that the plaster Will be firmly keyed thereto. Furthermore, the forms, which form a permanent part of the completed structure constitute reinforc ing means for the same. It is also obvious that the form plates may be made in anydesired standardsize and may be laced in pobent joints,

distance. between the beams or the size of the finished concrete beams, as the joints may occur at any point in the structure.

Iclaim V i -:1; In a concrete construction the usual steel beams, forms forthe concrete spaced from said beams and comprising corrugated metal plates, said plates being bent, around and spaced fromsaid beams, the bends'm said plates being transverse of said corrugations,

and the corrugations being unsevered, from the: plates throughout theirlength, concrete slabs and-beams above saidform, and plaster keyed. to said plates, substantially as de- -s fi b di: ;:v j v 2 v c 2. A device asset forth in claim -1 in which the .corrugationsjare Out through Without cutting the body of the plates or separation of thecorrugations from-the body to permit ready bending of the same, substantially as described. I V

.A form for, concrete construction adapted'toform a permanent part of the completed structure, and comprising -metallic plates spaced from structural steel elements and provided with longitudinally.disposed dovetailed corrugations, said dovetailed COIIHEV gations-at the ad acent lateral edges being interlocked, and, means for securing said edges together in interlocked relation, substantiallyas described 7 In testimony whereof I havesigned my name to this specification.

EMANUEL HIBBERT YARWOOD. 

